60891617 has 2 divisors, whose sum is σ = 60891618. Its totient is φ = 60891616.

The previous prime is 60891613. The next prime is 60891629. The reversal of 60891617 is 71619806.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51897616 + 8994001 = 7204^2 + 2999^2 .

It is a cyclic number.

It is not a de Polignac number, because 60891617 - 2² = 60891613 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (60891613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30445808 + 30445809.

It is an arithmetic number, because the mean of its divisors is an integer number (30445809).

Almost surely, 2^60891617 is an apocalyptic number.

It is an amenable number.

60891617 is a deficient number, since it is larger than the sum of its proper divisors (1).

60891617 is an equidigital number, since it uses as much as digits as its factorization.

60891617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 60891617 is about 7803.3080805515. The cubic root of 60891617 is about 393.4164383594.

The spelling of 60891617 in words is "sixty million, eight hundred ninety-one thousand, six hundred seventeen".